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reference designLT7171 | Demoboard EVAL-LT7171-AZ

Analog Devices LT7171 | Demoboard EVAL-LT7171-AZ

LT7171 16V PolyPhase Silent Switcher Step-Down Regulator with Digital Power System Management 2xLT7171, 40A

Overview

TopologyBuck Converter
Input voltage2.9-16 V
Switching frequency925-1075 kHz
Output 11 V / 40 A

Description

Evaluation kit EVAL-LT7171-AZ has two single-phase monolithic DC/DC synchronous step-down regulators with a 2.9V to 16V input range featuring LT®7171. The output can supply up to 40A continuous load current. The Silent Switcher® structure is incorporated into the LT7171 to minimize EMI and reduce PCB layout sensitivity. It also integrates digital power system management functionality, allowing for programmability and telemetry with a PMBus/I2C compliant serial interface. Refer to the LT7171 data sheet for more detailed information.

Features

  • Silent Switcher® Architecture: Enables a Compact, Efficient, Low EMI Solution
  • PMBus/I2C Serial Interface
  • Telemetry Read Back includes VOUT, IOUT, VIN, Die Temperature, and Faults
  • Programmable Voltage, Current Limit, Sequencing, Soft Start and Stop, Undervoltage and Overvoltage, Phase, Frequency (up to 4MHz), and Loop Compensation
  • Integrated Three Times Programmable NVM
  • Key Parameters Selectable by Resistor
  • VOUT Set Point Range: 0.4V to 5.5V
  • VOUT Accuracy: ±0.25%, 0.6V ≤ VOUT ≤ 1.375V
  • PolyPhase Load Sharing up to Four Devices
  • Differential Remote VOUT Sense
  • Fast Transient Response
  • Wide VIN Supply Range: Down to 2.9V or 1.5V with EXTVCC
  • Programmable and Synchronizable: 400kHz to 4MHz
  • 30-lead (3.5mm × 4mm) LQFN

Typical applications

  • Communications
  • Industrial Systems

More information

Products

Order Code
Data­sheet
Downloads
Status
Product series
Pins
Type
Mount
L(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
60800213421
SPECWR-PHD Jumper, 2, –
Availability
–
Downloads3 files

CAD files ZIP

Download all 3 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
Pins2 
–
–
–
Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
–Check availability
62000311121
SPECWR-PHD Pin Header, 3, Straight
Availability
–
Downloads7 files

EDA models: Components ZIP

CAD files ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
Pins3 
TypeStraight 
MountTHT 
Length6 mm
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability